我尝试使用 cmake 更改编译器：
SET(CMAKE_C_COMPILER "/opt/rh/devtoolset-2/root/usr/bin/gcc")
SET(CMAKE_CXX_COMPILER "/opt/rh/devtoolset-2/root/usr/bin/g++")
我在项目开始时调用“PROJECT”命令之前执行此操作。但是当我调用 cmake 时出现无限循环，我有以下输出：
-- The C compiler identification is GNU 4.8.2
-- The CXX compiler identification is GNU 4.8.2
-- Check for working C compiler: /opt/rh/devtoolset-2/root/usr/bin/gcc
-- Check for working C compiler: /opt/rh/devtoolset-2/root/usr/bin/gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /opt/rh/devtoolset-2/root/usr/bin/g++
-- Check for working CXX compiler: /opt/rh/devtoolset-2/root/usr/bin/g++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Found Doxygen: /usr/bin/doxygen (found version "1.6.1")
-- Looking for C++ include tut.h
-- Looking for C++ include tut.h - found
-- [STATUS] Found tut.h
-- Configuring done
You have changed variables that require your cache to be deleted.
Configure will be re-run and you may have to reset some variables.
The following variables have changed:
CMAKE_CXX_COMPILER= /usr/bin/c++
CMAKE_CXX_COMPILER= /usr/bin/c++
所以我在无限循环中一次又一次地收到此消息，即使我在调用 cmake 之前删除了缓存...
编辑：解决方案非常简单：您需要使用 cmake 版本 2.8.9 并且问题不会出现。